Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Online
- Google Chrome
- Mozilla Firefox
- Tampermonkey


Browse 29 Tampermonkey Software on AlternativeTo.


Iridium (former YouTube Plus) is an extension built to improve the user experience on the new YouTube Material layout. As of January of 2019, the development is discontinued. Firefox and Chrome Versions are out of date and you must manually sideload the addon.




A browser extension that lets you clean up and customize Facebook. It filters out the junk you don't want to see, leaving behind the stories and page elements you do wish to see.

FrankerFaceZ is a Twitch extension that lets any broadcaster add custom emotes to their channel. Just install and enjoy the community of thousands of broadcasters who are excited to bring you a more social and fun experience.




MAL-Sync is a powerful extension and userscript, which enables automatic episode tracking between MyAnimeList/Anilist/Kitsu and multiple anime streaming website.






Social Fixer has a wide range of features to make your Facebook experience better. Filter Your News Feed, Hide Posts You've Already Read, Show Full Pictures By Hovering, Stay On The Most Recent Feed, Hide Parts Of The Page, Fix Timeline, Themes, Anonymize For Screenshots...




Open source script for deleting all messages from a Discord channel or direct message, with automatic speed adjustment, logs, and advanced targeting options.


Dual web page translation extension with support for input box, mouseover, PDF, EPUB, subtitle, and TXT translation using AI engines, available on smartphones.





A simple browser extension to bypass YouTube's age verification and watch age restricted videos without having to sign in.

4chan X is a script that adds various features to anonymous imageboards. It was originally developed for 4chan but has no affiliation with it.

The most efficient user script for blocking popups of all types. Designed to fight the sneakiest popups including the ones on adult and streaming websites.

ChatGPT Infinity is a free (yet powerful) add-on that makes ChatGPT generate infinite answers on any topic!




Userscript taking advantage of the anki-connect plugin to add cards into your anki desktop from the webbrowser. - GitHub - brumar/anki-monkey: Userscript taking advantage of the anki-connect plugin to add cards into your anki desktop from the webbrowser.
The intrusive "Ad blocker are not allowed on YouTube" message is annoying. This open-source project aims to address this issue by providing a solution to bypass YouTube's ad blocker detection.

At the Google Search engine, search results are converted to an ugly link upon click. This link enables tracking for Google.



Free web-based service that removes ad gates from many link shortener sites, processing links via a custom-coded API without registration or downloads.
